51252622 has 12 divisors (see below), whose sum is σ = 79017120. Its totient is φ = 24932376.

The previous prime is 51252613. The next prime is 51252623. The reversal of 51252622 is 22625215.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51252623) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6622 + ... + 12097.

It is an arithmetic number, because the mean of its divisors is an integer number (6584760).

Almost surely, 2^51252622 is an apocalyptic number.

51252622 is a deficient number, since it is larger than the sum of its proper divisors (27764498).

51252622 is a wasteful number, since it uses less digits than its factorization.

51252622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18795 (or 18758 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 51252622 is about 7159.0936577195. The cubic root of 51252622 is about 371.4542765107.

Adding to 51252622 its reverse (22625215), we get a palindrome (73877837).

The spelling of 51252622 in words is "fifty-one million, two hundred fifty-two thousand, six hundred twenty-two".